Trapped in a special protective cube created by his siblings, Kyoichiro rotates his primary weapon, steel wires, in all directions, shattering the cube to escape.

As he breaks the cube and walks out, the siblings watching are struck with immense shock and horror. This is because ominous black cherry blossoms have begun to bloom across Kyoichiro's body.

These black blossoms are cruel evidence that the lethal cells and deadly poison of the first head, Tsubomi, are beginning to fully encroach upon his body.

As the black blossoms cover his body more terrifyingly, it is a desperate crisis where his powerful spy vitality, as well as his remaining lifespan and very life, are being gnawed away in real-time.

With a desperate heart, wishing for his siblings not to get hurt, Kyoichiro puts a great distance between himself and them.